ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  
Pages: [1] 2 3   Go Down

Author Topic: active VS passive for main speakers  (Read 15568 times)

Roy B Stanton

  • Newbie
  • *
  • Offline Offline
  • Posts: 7
active VS passive for main speakers
« on: December 13, 2006, 11:20:53 PM »

  I'm buying a new live sound rig.Active VS passive What's the real deal.Any pro's and cons would be helpful
Logged

Bennett Prescott

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 8924
    • http://www.adraudio.com
Re: active VS passive for main speakers
« Reply #1 on: December 14, 2006, 05:31:25 AM »

I'm not sure being "active" (read: with power amplifiers and processing integrated into the loudspeaker) or "passive" is a valid attribute... it's like saying "I need to drive at 60 miles per hour, should I use gas or diesel?".

Here's what I suggest: Find the speakers that will work best for your situation. If they are active, great. If they are passive, great. The way power gets to the driver is likely irrelevent to your situation, unless you're talking about a large touring rig in which case such things can be a large part of the buying decision.
Logged
-- Bennett Prescott
Director of North American Sales
ADRaudio d.o.o.
Cell: (518) 488-7190

"Give me 6dB and I shall move the world." -Archimedes

Dave Dermont

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2011
    • http://www.geocities.com/livesound101/
Re: active VS passive for main speakers
« Reply #2 on: December 14, 2006, 09:00:43 AM »

The first thing we need to know is if by "active" do you mean using multiple external amplifiers and an active crossover or if you mean speakers with built-in amplifiers.


Logged
Dave Dermont - Chief Lizard, LAB Lounge

WARNING: Dates In Calendar May Be Closer Than They Appear

Roy B Stanton

  • Newbie
  • *
  • Offline Offline
  • Posts: 7
Re: active VS passive for main speakers
« Reply #3 on: December 14, 2006, 10:07:31 AM »

  Sorry guys Im talking about powered and unpowered( with power amps etc) speakers.How well do the active speakers preform and the pro's and cons of them. I know about power amps and all that.I dont know about the active speaker realm for live sound for any room I may play.
Logged

Tony "T" Tissot

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3902
    • http://www.4dbsound.com
Re: active VS passive for main speakers
« Reply #4 on: December 15, 2006, 06:24:58 PM »

As stated by the others earlier, the intended use dictates what is best - and pasive vs. active probably isn't in the equation.

I use 4-way (occasionally 5-way) active mains that are comprised of 3 cabinets (4 in the 5-way configuration) for my primary rig.

Monitors are bi-amped - but through pre-connecterized amp racks. X-over settings are saved and marked.

For me it means really fast setup. I just roll in a 660lb dolly and hope I can find a helper to lift the pieces into place.

I'll admit that it is not really a whole lot faster than passive speakers coupled with a good, well-thought-out, connectorized amp rack.

- Of course if you loose an amp in an active system, you are "out of luck." I never have - fortunatly.

- I do not need to do any Xover stuff (although again - a well thought out passive system would be pre-configured prior to load-in anyway).

Logged
MNGS
ProSoundWeb - Home of 50,000 audio professionals - and two or three curmudgeonly SOBs.

Roy B Stanton

  • Newbie
  • *
  • Offline Offline
  • Posts: 7
Re: active VS passive for main speakers
« Reply #5 on: December 15, 2006, 11:32:50 PM »

 thanks Tony.Well at least if you lose a active speaker you have one left,but if you lose a power amp theirs nothing left.The whole active thing is new to me so Im checken everything out.Thanks; anyone else? Also,for small to medium gigs,any preferance's to speakers,best bang for the buck.example one high pack(15 and 2 inch driver) and one sub(18) on each side
Logged

Tony "T" Tissot

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3902
    • http://www.4dbsound.com
Re: active VS passive for main speakers
« Reply #6 on: December 16, 2006, 03:32:30 PM »

Yeah -

This seems to be the order:

1. Most typical basic setup is the single 2-way speaker on each side on stands.
(Stands to keep the horns above the audience's ears)

2.Then adding sub-woofer component, gets added to each side. Includes adding a crossover - more amplifiers (subs need a more powerful amp). Almost always mono on the subs. Many have pole holders that let you put the 2-way mains above them.

3. From there - many permutations exist. Bi-amping the tops, Ganging subs together, 4-way, 5-way systems.... as many choices as you could ever desire.

For advice on speakers - you'll get lots of opinions.

Be very careful not to just get advice from the typical "big-box" musical instrument stores. Not that they are all bad - but I've seen some very bone-headed junk that comes out of them.

I don't endorse any of the following - just because I don't use them - but:

The Yamaha on the low end seem to get some respect here at an advantageous price point.
Yorkville seems to give very good service to a lot of folks in the lounge.
The JBL higher-end music store stuff (SRX/MRX) also gets some kudos.

The biggest problem I hear from the MI store stuff is that while it may seem loud - it just lacks low-end puch, sparkle and mid-range clarity. (Big, dumb, loud, sounds like mush)

I've had good results with EV, QSC amps, ISP Technologies active speakers, EAW and JBL monitors. (I do outdoor festivals to about 2,000 people (rock, blues etc) and indoor shows to about 800 people for hardcore, pop, punk, big band, bluegrass and rockabilly)

As for advice - find someone who does your same musical style and listen to some live gigs for advice - and then compare what you hear to the sound you get at a big professional concert.
Logged
MNGS
ProSoundWeb - Home of 50,000 audio professionals - and two or three curmudgeonly SOBs.

Roy B Stanton

  • Newbie
  • *
  • Offline Offline
  • Posts: 7
Re: active VS passive for main speakers
« Reply #7 on: December 18, 2006, 11:18:21 AM »

  Thanks Tony (life starts after you get past yourself in my opp.)I cant find enough people using active speakers;maybe thats the answer. Thanks for the info.
Logged

Scott Bower

  • Newbie
  • *
  • Offline Offline
  • Posts: 46
Re: active VS passive for main speakers
« Reply #8 on: December 18, 2006, 12:03:42 PM »

Roy,
I think one of the reasons more people aren't active is it involves a major change in your system. While most guys will upgrade speakers, then amps and so on, to go completely active requires buying at least 4 powered boxes at once.In my case this worked well since I was able to sell 4 speakers, two amps and a crossover to offset the cost.
Many are scared about blowing a power amp or speaker and not being able to patch around it.The thing to remember is it's less likely you will have these problems since limiting and other proccesing are built in and the systems are engineered to work together.
I have Mackie SA1521 over SWA1501 and they work well for crowds up to 800.Setup is a breeze with all XLR cables and crossovers are built in.I got a deal from a friend on these but if I was starting from scratch I would have also looked at Yorkville or  the new QSC stuff.
Logged
Scott Bower
owner/engineer
ROCKSOUND

Tony "T" Tissot

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3902
    • http://www.4dbsound.com
Re: active VS passive for main speakers
« Reply #9 on: December 18, 2006, 01:07:01 PM »

Roy;

I agree with Scott's assessment. As he said, it's the decision to make the major change that probably stops a lot of folks from going active.

I use active mains for 80% of what I do. And I highly recommend the approach. (I use the ISP technologies Tri power reference system, which is 4-way, or 5-way (that means 4 amp or 5 amp channels per side) depending on configuration. The picture is the 4-way configuration)

In my case I had enough use for "leftover" speakers and amps in my "B" system - and for use in bi-amped monitor mixes. Otherwise, I would have had to sell them.

http://www.4dbsound.com/images/site_photos/MMG_Shane_Dwight_3_06.jpg
Logged
MNGS
ProSoundWeb - Home of 50,000 audio professionals - and two or three curmudgeonly SOBs.
Pages: [1] 2 3   Go Up
 

Site Hosted By Ashdown Technologies, Inc.

Page created in 0.033 seconds with 20 queries.